[CAUT] question

[Bob Hull]

David,

Did the riblets help the sustain or the power or both?

Did you install them beneath the bridge?

I have been wanting to try them for my Kawai GS-60 which is about 13 years old and has lost sustain in the 5th octave especially, also on a S&S D in the university chapel, which seems to be powerless overall except the bass.  I put new hammers on a few years ago and lacquered them well but still it is weak.  

Bob Hull



________________________________
From: "Porritt, David" <dporritt at mail.smu.edu>
To: "caut at ptg.org" <caut at ptg.org>
Sent: Monday, March 30, 2009 10:45:55 AM
Subject: Re: [CAUT] question


Ray:
 
I’ve heard good things about them but have not heard one
myself.  I did improve that area of one of our Ds by putting on a couple
of Darrell Fandrich’s “riblets”.  I installed 2 between
two regular ribs in that problem area.  It’s a tough area to work on
- particularly lying on your back under the piano and probably would be easier
with the piano on its side.  The downside of that would be hearing the
difference the riblet made without putting the piano back on its legs.  In
this case people who had no idea that I had done anything, noticed the change
and commented (positive comments!).  
 
dave
 
David M. Porritt, RPT
dporritt at smu.edu
 
From:caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Breakall,
Raymond
Sent: Monday, March 30, 2009 10:30 AM
To: caut at ptg.org
Subject: [CAUT] question
 
Fellow techs,
 
I have a S&S D that has a weak melody octave and
wondered about opinions of the “treble tone resonator” that
Pianotek sells for a solution to the problem. Thanks
 
Ray
 
Ray Breakall
Piano Technician 
University of Richmond
(804) 287-6342


      
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/caut_ptg.org/attachments/20090331/cdd2df49/attachment-0001.html>